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Last Updated :2026/07/09

改良かいりょうする

Hiragana
かいりょうする
Hepburn romanization
Verb

ameliorate, improve, better, upgrade

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Word Forms

The basic and commonly used forms of this verb.

Basic forms
Form Word form Usage
Imperfective form (mizenkei)
Alternative: 改良さ 改良せ
Connects to endings such as nai, reru, and seru.
Continuative form (renyokei) Connects to endings such as masu, tai, and ta.
Conclusive form (shushikei) Ends a sentence and serves as the dictionary form.
Attributive form (rentaikei) Modifies a noun.
Conditional form (kateikei) Combines with ba to express a condition.
Imperative form (meireikei)
Alternative: 改良せよ
Expresses a command or instruction.
Common forms
Form Word form Usage
Te-form Connects clauses with te.
Ta-form Expresses the past with ta.
Nai-form Expresses negation with nai.
Masu-form Used for polite speech.
Ba-form Expresses a condition with ba.
Volitional form Expresses intention or invitation.
Notes
  • サ行変格活用の複合動詞。未然形は後続語によって「し・さ・せ」を使い分ける。

Japanese - Multilingual

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